Lower Rank 1 Blood Demon Art: Forced Sleep

Lower Rank 2 Rokuro likely possessed strength equivalent to Lower Rank 3. Considering that ordinary demons who received Muzan's blood lost their reason and couldn't use Blood Demon Arts but still rose to Lower Rank level in power, Rokuro—who was much stronger than them—might have become as powerful as Enmu if Muzan had given him more blood, as he himself claimed.

Lower Rank 3 A member of the Twelve Kizuki with slanted eyes and X-shaped scars on his forehead and both cheeks. The number engraved in his eye is Lower Three (下参).

A female member of the Twelve Kizuki with short hair and two horns on her forehead. The number engraved in her eye is Lower Four (下肆).

Lower Rank 5

Lower Rank 6

Lower Rank 6

Upper Rank 1 Blood Demon Art: Crescent Moon Blades His most striking physical feature is his six eyes, which instill a sense of dread in those who see them. Additionally, his yellow pupils are set against sclera that are dyed deep red. Aside from the number of eyes and his pale skin, his appearance does not differ much from a human's, perhaps by design. For instance, while the shape of nails varies among demons, Kokushibo's nails are of a normal shape, albeit slightly dark in color, unlike the sharp light-blue nails of Muzan or Doma. He possesses an aesthetically pleasing body with well-developed muscles from never neglecting his training, standing at a tall height of 190cm.

Upper Rank 2 Blood Demon Art: Powdered Ice He is the leader of the Eternal Paradise Cult, a cult that serves Kibutsuji Muzan. Among the Twelve Kizuki, he has the most human-like appearance. He is a handsome young man with a sophisticated aura, characterized by a gentle impression, a constant smile, and hair that looks as if it were stained red by blood poured over it. However, he possesses a major flaw: a complete lack of emotion, formed by his innate nature and a life lived outside the bounds of normalcy. Because of this, he lacks tact and social skills; when the Upper Ranks are summoned to the Infinity Castle, the others—and even Nakime—treat him as if he weren't there, effectively ostracizing him.

Upper Rank 3 Blood Demon Art: Destructive Death

Upper Rank 4 Blood Demon Art: Infinity Castle

Upper Rank 4 Blood Demon Art: Emotion Manifestation A being who does not die even if his head is cut off. In other words, the more his neck is cut, the stronger he becomes.

Upper Rank 5 Blood Demon Art: Summoning Art He has the least human appearance among the Twelve Kizuki. He has a grotesque face with mouths where his eyes should be and eyes where his mouth should be. Like the Hand Demon, he has numerous hands, and his lower body consists of a tail instead of legs.

Upper Rank 6

Upper Rank 6 Blood Demon Art: Poison Blood, Blood Blades Sibling of Daki

Upper Rank 6 Blood Demon Art: Thunder Breathing